Post-hole auger.



No. 645,222. Patented Mar. rs, |900.

cLL. ruTTLE. POST HDLE AUGER.

(Application ld; Dec. 4, 1899.)

mlmullllllmllll 1H: aims Evans co. Puoroumo., WASHINGTON. o. c.

2o the dot-ted line 2 2in Fig. l.

Unirse STATES PATENT Erre.

CHARLES L. TUTTLE, OF ROCHESTER, NEW YORK. p

POST-HOLE AUGER.

SECIFICATON forming part of Letters PatentNo. 645,222), dated March 13,1900. Application tiled December 4, 1899. Serial No. 739,153. (Nomodel.)

vof New York, have invented a new and usefnl Improvement in Post-HoleAngers, which improvement is fully set forth in the followingspecification and shown in the accompanying drawings.

My invention is an auger or device for bor- 1o ing post-holes by hand;and it consists in parts and devices and the operation of thev same, all`hereinafter fully described, and more particularly pointed out in theclaims. Referring to the drawings, Figure l is a side elevation of theauger, partsbeing broken away and axially sectioned and other. partsshown in two positions -by fnlland dotted lines. Fig. 2is a plan of thecutting-head, the shaft being' horizontally sectioned, as on Fig. 3 is aside elevation of the head and lower part of the shaft, seen asindicated `by arrow 3 in Fig. 2. Fig. It is a view ofv the under surfaceo f the head, seen` as indicated by arrow 4 in Fig. 1, thecutter-sections being shown in different positions of adjustment by fulland dotted lines. Fig. 5 is a diametrical'se'ction of the head and lowerpart of the shaft on the dotted lines 5 5 in Figs. 2 and 4. Fig. 6 is a3o plan of the head-bar detached. Fig. 7 shows a throat or passage forthe loose earth, the section being on the dotted line 7 7 in Fig.

In the drawings, A is the shaft of the auger, and B B the handles, saidshaft and han- 3 5 dles being preferably of hollow metal, as gaspipe.

C is Ithe head of the auger, substantially circular in form, preferablyscrew-threaded onto the lower end of the shaft A, so as to be 4oremovable therefrom, the plane of the head being at right angles withthe shaft, as shown.

The lower end a of the shaft is made solid and tapered and formed with aspiral to aid in drawing the auger into the earth as it is turned by theoperator.

5o therefrom, the bar crossing the shaft at right angles. This head-barcarries four independent quadrantal sectors or sections E E and F .holeto be cleared.

F, secured to the bar in pairs all in the same plane. The sections E Eare the cutters, being formed with downwardly-projecting lips or cuttingedges b 7), turned in opposite directions, as shown. The smallercarrier-sectionsF F are formed .with upturned edges c' c, extendingobliquely over t-he :respective cntting edges l) l), forming betweenthem spaces or throats d d, Figs. 4 and 7, for the earth loosened by thecutters to pass np through on top of the disk or head C. Thecutter-sections E E, placed diametrically opposite each other, lapacrossthe under face of the barD on, opposite sides of the'shaft A,being held to said bar by bolts e e. These bolts pass through inclinedslots f f, Fig. 4, in the sections, so

--that the latter' may be adjusted or moved bodily in the plane of thehead through short distances radiallytoward orV from the shaft for thepurpose of boring larger or smaller holes.- The outer front cornersofthecuttersections are preferably formed with upturned lips gr g, as shown.

The smaller carrier-sections F F are held to the upper side of thehead-bar D by hinges G G, so as to .swing from their normal horizontalpositions in the plane fof the head up ward against the shaft A,as shown in Fig. l.

the bar D by the bolts e e, the minor parts of the hinges/i' t' beingsecured to the respective sections F F by some suitable fasteners la 7c.

The upward swinging of the carrier-sections F F allows small stones orother hard bodies loosenedby the cutters to pass upward onto the` headthat would otherwise, if the sections wererigid, be liable to lodge inthe throats d d and so clog the auger and render it necessary to lift itout of the unfinished When the parts F F descend to their normalpositions after being raised at any time, their edges under the hingesabut against the opposing edges of the rigid parts E E, as shown, whichprevents them from turning or dropping below the plane of the head C. v

The sections F F and the hinges G G do not change their positionsrelatively with the bar D,veXcept as to the upward swinging of thesections; as above described. The cut'- ter-sections E E are relativelyadjusted with reference to said bar, the slots ff being pref- The mainparts h h of the; hinges are held to IOO erably made at an angle ofabout forty-ii ve degrees with the bar D.

Openings Z,Figs. l and 5,are formed through the sides of the shaft belowthe head C to admit air under the head to prevent a vacuum being formedthereunder when the latter is drawn out of a hole to lii't out theloosened earth above it. This is essential, particularly when boringinto Wet clay or qnicksand.

What I claim as my invention isl.- A post-hole auger comprisinga sh aftwith handles, a head and head-har held by said shaft, and two pairs ofindependent quadrantal sections secured to said head-bar, thediametrically-opposite sections of one pair forming cutters and those ofthe other pair carriers, the adjacent edges of the sections overlappingand turned in opposite directions and the carrier-sections hinged ltothe upper side of the head-bar, and means for limiting theido'wnwardmovement of the carrier-.sec-

lions, as set forth.

2. A post-hole auger comprising a'shaft with handles, a head and ahead-bar held `by said shaft, and two pairs of quadrantal sectionssecured to the said bar each independentlyl of each other with thediametrically-opposite sections of. one pair lforming cutters and thoseof the other pair forming cai'rieis,ihe.adjacent edges ot' the sectionsoverlapping and turned in opposite directions and the carrier-sectionshinged to the upper ace ot'lsaid bar and having their edges adjacent thehinges extended beneath the adjacent edges of the cutter-secet. Apost-hole auger c omprisinga shaft with Y' l handles therefoxgacross-bar on the shaft, cutterfsectons secured to the under face of thecross-bar, and carrier-sections hinged to the upper side of thevcross-bar, and vfasteningbolts `forthe cutter-sections and thecrossbar,theculter-sections having slots inclined to the cross-bar to receivesaid fasteners, snbstantially as shown and described.

In witness `whereof 1I have herenntozset Ymy .hand this 1st day ofDecember, 1899, in the presence of twosubscribing witnesses.

CHARLES L. 'rU'rTLn Witnesses:

Enos SB. WHITMORE, M. L. WiNsrroN.

